Window



Jan. 9, 1945. w. P. KESSLER WINDOW Filed March 31 1941 3 Sheets-Sheet l INVENTOR. MzmZP/ aiaier Jan. 9, 1945. w KEss 2,367,129

WINDOW Filed March 31; 1941 3 Sheets-Sheet 2 I l] A 7 M. w

INVENTOR.

Ward P/Zeasler:

%wmfldmwh /W a Jan. 9, 1945. w, P KE LER 2,367,129

WINDOW Filed March 31. 1941 5 Sheets-Sheet 6 INVENTOR.

BY VI ar'a P header; MMQWM/% Patented Jan. 9, 1945 WINDOW Ward r. Kessler, Emmi-grad, assignor to The Adlake Company, Chicago, 111., a corporation of Illinois Application March 31, 1941, Serial No. 385,995

41 Claims. ('01. 189-65) One of the principal objects of the present invention isto provide a window which is for the most part of extruded aluminum construction, is strong, light, durable, and inexpensive, is easy to open and close, is easy to reglaze, gives maximum vision, and is especially adaptable to public, commercial and monumental buildings, and other installations where appearance and satisfactory operation over an indefinitely long period of time are primary factors.

Other more specific objects and advantages of the invention will be apparent to those skilled in the art upon a full understanding of the improved window and its novel features of construction.

A preferred embodiment of the invention is presented herein by way of exemplification, butit will of course be appreciated that the in-' vention is capable of being embodied in various other structurally modified forms coming equally taken on the line -4 of Fig. l;

. Fig. 5 is a section which is similar to Fig.

4 but is taken with the lower sash raised;

Fig. 6 is a fragmentary horizontal section,

taken on the line 66-of Fig. l;

Fig. 7 is an inside face view of a portion of the lower sash, showing the removable glazing strips for the same; r

Fig. 8 is a fragmentary perspective view, showing the way in which the glazing strips are detachably interlocked with each other ,at the upper corners of the sash;

Fig. 9 is an inside face view of a portion of a stationary upper sash provided with muntins;

Fig. 10 is a horizontal section through one of the vertical muntins, taken on the line Hi -I0 of Fig. 9; and

Fig. 11 is a vertical section through one of the horizontal muntins, taken on the line ll-il of Fig. 9. I

The window shown in the drawings is a selfcontained unit which is fabricated from a number of extruded aluminum rails. It includes primarily two jamb rails Ill and II, a header rail I 2 and a sill rail l3, which rails are all rigidly secured together at their ends to constitute the frame -of the window.- This frame is set into the side rails 10 and H.

the opening in the masonry and anchored and sealed there in any suitable manner.

The window is characterized by- 'a fixed upper sash I! which is. glazed directly into the frame and a vertically movable lower sash l5 which upon being opened is moved vertically into a position behind the upper sash. When in its lowermost position the lower sash 15 is locked against movement by fasteners l6 which are mounted on the top rail ll of the lower sash and 'coact with the bottom rail I8 of the upper sash.

These meeting rails l1 and I8 are sealed together in the lowermost position ofv the sash 15 by a sealing strip IQ of U-shaped cross section which fits over a thin vertical flange on the meet ing rail I8 and is embraced by the sides of a channel 2| onthe meeting rail H. The sealing strip I3 is retained in place by enlarged beads 22 along the lower edges of the strip which are adapted to be slide endwise into correspondingly shaped recesses in the header 18 at opposite sides of the base of the flange 20. When the vertically movable sash is in its lowermost position the meeting rails Ii and i8 will be sealed't'ogether by the sealing strip I9, and the sealing strip lFwill be housed within and protected' by the channel 25.

The fixed upper sash it includes themeeting rail l8 and a pane of glass 23. The margins of the pane 23 are set into glazing recesses 52',- 25-,. 26 and?! rovided respectively in the header rail 12, meeting rail l81and upper outerpor-ti'ons of The ends' of' th etingrail it are rigidly secured to the 'outerportions of the s'iderails ill of the window.

The recesses 24 and 25 in the llea iel" fail "if and meetingrail l8 are of U-shaped cross secthe margins of the pane 23, whereby to permit the pane to be inserted in the top recess 24 far enough for the lower edge of the pane to clear the top of the header rail l8 and enter the bottom recess 25. I

The recesses 26 and 21 in the side rails l0 and I I are L-shaped, as distinguished from U-shaped, whereby to permit the side margins of the pane to be swung into and out of position. In setting the pane 23 the recesses for the margins of the same areifilled with any suitable glazing material 28, such as putty, or-felt or rubber strips, and

. the recesses 26 and 21 are then closed off on the and it about mi'dj herght sides of the ends of the header rail l3. These strips are provided with L-shaped locking flanges 3| which fit within correspondingly grooved portions 32 of the side rails.

The strips 23 and 33 are provided, at the inner side of the upper sash |4, with laterally extending Z-shaped portions 33 which constitute in effect spacing stops between the upper and lower sashes when the lower sash israised and operate with the lower sash to guide the same in its vertical movement.

The lower sash l includes a previously mentioned top rail H, a bottom rail 34 and side rails 35 and 33. The rails I1, 34, 35 and 33 are provided respectively with glazing recesses 31, 33, 39 and 40 for the reception of the margins of a pane of glass 4|. The recess 33 is u shaped in cross section, while the recesses 31, 39 and 43 are L-shaped in cross section, whereby to permit the pane 4| to be swung into place after the lower edge of the pane has been seated in the U- shaped recess 33. As with the flxed upper sash l4, any suitable material 42 may be employed in glazing the pane 4|. The recess 31 in the top rail I1 is closed oil on the inside of the sash by a glazing strip 43, while the recesses 33 and 43 in the side rails 35 and 33 are closed off by somewhat similar glazing strips 44 and 45. The glazing strips 43, 44 and 45 are of inverted U-shaped cross section and are provided adjacent their inner faces with flanges 43 which. are designed to interlock within correspondingly grooved portions 41 of the associated rails. The upper glazing strip 43 is preferably arranged with its ends in abutment with the opposed portions of the side rails 35 and 33, while the side glazing strips 44 and 4-5 are preferably arranged with their upper ends in abutment with the under sides of the ends of the top glazing strip 43. The locking flanges 46 on the side glazing strips 44 and 45 preferably project upwardly a little beyond the upper ends of those guide strips in order to hook behind the ends of the top glazing strip 43 (see Figs. '7 and 8). This makes it only necessary to secure the lower ends of the side glazing strips 44 and 45 in positionwhich may be done by means of one or more screws 43. v

The screws 43 are preferably of self-tapping character and are adapted to be threaded into narrow slots 49 formed in the side rails 35 and 43 on lines parallel with the side glazing strips see Figs. 3, 5 and 6) This enables the holes for the screws 48 to be formed in the side guide strips at any point longitudinally of the latter, without regard to exact elevations, and makes it unnecessary for any holes to be drilled or tapped in the side rails of the sash.

The bottom rail 34 of the lower sash I5 is provided with an operating handle 53 which preferably extends without interruption from one side of the sash to the other. A sealing strip 5| is attached to the bottom rail 34 at the lower inner edge of the latter for engagement with an upstanding flange 52 on the sill rail l3. The sealing strip 5|, lik the previously described sealing. strip I9, is of pile fabric construction on a thin sheet metal backing, and, like the sealing strip I9, is adapted to be slid endwise into position, in a shallow groove 53 formed in the inner face of a downwardly extending flange 54. The face of the sealing strip 5| is preferably, though not necessarily, set at a slight downwardly diverging angle to the opposed face of the flange 52.

The side rails 35 and 33 of the lower sash I5 are provided with spaced flanges 35, which flanges are spanned by U-shaped sealing strips 53. The sealing strips 56, like the sealing strips l3 and 5|, are of the so-called non-metallic type, and are characterized by woven pile fabric secured to a thin sheet metal backing. The edges of the metal backing are beaded and engage resiliently within correspondingly shaped grooves in the flanges 55. The sealing strips 53 are assembled with the side rails 35 and 33 by being slid lengthwise into position. Caps 5! (see Fig. 4) on the ends of the horizontal rails lock the sealing strips 53 against endwise movement when assembled with the rails. The sealing strips 63 hook the flanges 55 of the side rails 35 and 33, thereby providing a weather-tight joint between the sealing strips and the side rails. The sealing strips 53 coact with vertically serrated guide portions 53 in freely slidable but weather-tight association with the same. The serrated portions 53 engage with the outer sides of the sealing strips, with the inner sides of the sealing strips, and also with the side edges of the sealing strips (see Figs. 4, 5 and 6). The serrated portions 53 adjacent the inner part of the sash are formed on the side rails l3 and I of the frame, the portions engaging with the inner faces of the sealing strips being formed on flanges 59 of the side rails in the plane of the inner faces of those rails, and th portions engaging with the edges of the sealing strip being formed on separate outwardly extending flanges 60. The serrated portions 53 which engage with the outer parts of the sealing strips are formed on the Z-shaped extensions 33 of the side glazing strips 29 of the upper sash. Below the upper sash the serrated portions 53 are formed on correspondingly shaped extensions 3| of strips 32. The strips 32 are identical with the strips 29 except for the omission on the strips 32 of any portion corresponding to a glazing groove side wall. Thestrips 32, like the strips 29, are provided with flanges 33 which interlock within the previously described grooved portions 32 provided in the side rails l3 and I The serrated guide portions 53 in which the lower sash I5 is slidably mounted substantially close oil the hollow rails I3 and H at the sides of the sash, providing compartments for the reception of any sash balancing means (not shown) or any desired type. Portions of the vertically aligned extensions 33 and 6| abut with the inner sides of the rails 3 and II at 64, to provide a rigid abutment for the serrated guide portions 53, while other portions extend into abutting engagement with the previously described flanges 30 at 35, whereby to brace the extensions 33 and 6| against movement in that direction. The last mentioned portions may be cut away if desired opposite the connection of the balancing means with the lower sash (as shown in Fig. 6) whereby to provide a slot for the passage and vertical movement of the connecting means.

To remove the vertically movable sash 5 from the frame it is merely necessary to remove the strips 29 and 32 from one side of the frame, for example the left side of the frame, whereupon the left side of the sash l5 can be moved back into the sash balancing pocket far enough to permit the right side of the sash to be moved out of its guideway. The sash can be replaced in the same way.

The serrations for guiding the side rails of the lower sash l5, instead of being formed on the side rails 3 and II of the frame and the extensions 33 and 3|, might be formed instead on relatively narrow rib-like flanges provided on the edges of the side rails of the sash, with the pile fabric material for coaction with the serrations mounted'within the guide grooves into which the riblike .projections extend. In other words, the serrated guides and pile fabric might be reversed, the serrations being provided on the side rails of the sash and the pile fabric being provided as a lining for the guides coacting with the same.

In Figs. 9, 10 and 11 is shown a multiple-pane fixed upper sash 66 which may be used in place of the single-pane upper sash shown in the other views. In this multiple-pane sash the several glass .panes 6! are separated from each other by horizontal muntins 68 and vertical muntins 69.

' In setting each of the panes 61, the lower edge of the same is placed in a groove 10 in the upper face of one of the horizontal muntins 68, the upper edge of the pane is swung into its intended position, and a capping strip H is applied to the vertically extending muntin 69. The glazing groove for the margins of the panes are of course first filled with a suitable glazing compound. After the cap strips II have been placed in position, self-threading screws 12 are passed through apertures in the cap strip and caused to thread themselves into vertically extending grooves 13 in center flanges 14 of the vertical muntins.

This construction eliminates any necessity of drilling and tapping holes in the muntins in exact registration with the holes in the cap strips. The upper margins of the .panes 61 are finished off by glazing strips 15, which strips are provided with flanges 16 which flt within grooved portions 11 in the under sides of the horizontal muntins. The glazing strips I5 are held in position by the ends of the cap strip H.

I claim:

1. In a metal window of the vertically slidable sash type, a frame characterized by hollow side rails which open toward each other, a vertically slidable sash mounted in the frame, and members projecting into the hollow side rails from opposite sides of the latter at points spaced inwardly from the edges of said sides to provide relatively shallow channels within the contours of the hollow side rails for centering and guiding the sash in its vertical movement, said members being carried by the sides only of the side rails independently of and in substantially spaced relation to the backs of said rails.

2. In a metal window of the vertically slidable sash type, a frame characterized by hollow side rails which open toward each other, a vertically slidable sash mounted in the frame, and members projecting into the hollow side rails from opposite sides of the latter for centering and guiding the sash in its vertical movement, said members being carried by the sides only of the side rails independently of and in substantially spaced relation to the backs of said rails, one at least of said members being readily removable with the sash still in position in the frame, whereby to permit the sash to be shifted bodily edgewise into the hollow interior of the side rail of the frame far enough to effect removal of the sash from the hollow side rail at the other side of the frame.

3. In a metal window, a frame provided with rigid vertically serrated sash guides, and a vertically movable sash provided with detachable guide strips for coaction with the guides, the side rails of the sash terminating in spaced flanges, and the guide strips consisting of thin resilient metal strips of U-shaped cross section covered with pile fabric, with beads on the edges of the thin metal strips in interlocking engagement with correspondingly shaped grooves in the spaced flanges on the side rails.

4. In a metal window of the type including a frame and a vertically movable sash within the frame, detachable guide strips on the side rails of the sash for sliding coaction with encompassing guides on the frame of the window, said guide strips being hollow and resiliently compressible and being covered with pile fabric.

WARD P. KESSLER. 

